AllzeroThaisaurusUtatsusaurusQuasianosteosaurusGrippiaChaohusaurusParvinatatorWimaniusMixosaurusPhalarodonContectopalatusToretocnemusQianichthyosaurusMerriamosaurusCymbospondylusPhantomosaurusShastasaurusCalifornosaurusMikadocephalusBesanosaurusShonisaurusCallawayiaMacgowaniaHudsonelpidiaTemnodontosaurusLeptonectesEurhinosaurusSuevoleviathanIchthyosaurusStenopterygiusAegirosaurusBrachypterygiusPlatypterygiusOphthalmosaurusCaypullisaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Maisch_et_Matzke_2003b